<template>
	<view class="calsslist">
		
		<view class="loadingLayout" v-if="!classList.length && !noData">
			<uni-load-more status="loading"></uni-load-more>
		</view>
		
		<view class="content">
			<navigator :url="'/pages/preview/preview?id='+item._id" class="item" 
			v-for="item in classList" 
			:key="item._id"
			>
				<image :src="item.smallPicurl"></image>
			</navigator>
		</view>
		
		<view class="loadingLayout" v-if="classList.length || noData">
			<uni-load-more :status="noData?'noMore':'loading'"></uni-load-more>
		</view>
		
		<view class="safe-area-inset-bottom"></view>
	</view>
</template>

<script setup>
import { ref } from 'vue';
import { onLoad,onUnload,onReachBottom,onShareAppMessage,onShareTimeline  } from "@dcloudio/uni-app"
import {apiGetClassList,apiGetHistoryList} from "@/api/apis.js"
import {gotoHome} from "@/utils/common.js"

const classList = ref([])
const noData = ref(false)
const queryParams = {
	pageNum:1,
	pageSize:12
}
let pageName;

onLoad((e)=>{
	let { id=null,name=null,type=null} =e;
	if(type) queryParams.type = type;
	if(id) queryParams.classid = id;
	// if(!id) gotoHome();
	
	pageName = name;
	uni.setNavigationBarTitle({
		title:pageName
	})
	
	getClassList();
})

onReachBottom(()=>{
	if(noData.value) return;
	queryParams.pageNum++;
	getClassList();
})

const getClassList = async()=>{
	let res;
	if(queryParams.classid) res = await apiGetClassList(queryParams);
	if(queryParams.type) res = await apiGetHistoryList(queryParams);
	
	classList.value = [...classList.value,...res.data];
	if(queryParams.pageSize > res.data.length) noData.value = true;
	uni.setStorageSync("storgClassList",classList.value)
}

//分享给好友
onShareAppMessage((e)=>{
	return {
		title:"廉小兵壁纸-"+pageName,
		path:"/pages/classlist/classlist?id=" + queryParams.classid + "&name=" + pageName 
	}
})

//分享给朋友圈
onShareTimeline((e)=>{
	return {
		title:"廉小兵壁纸-"+pageName,
		query:"id=" + queryParams.classid + "&name=" + pageName 
	}
})

onUnload(()=>{
	uni.removeStorageSync("storgClassList")
})
</script>

<style lang="scss" scoped>
.calsslist{
	.content{
		display: grid;
		grid-template-columns: repeat(3,1fr);
		gap:5rpx;
		padding: 5rpx;
		.item{
			height: 440rpx;
			image{
				width: 100%;
				height: 100%;
				display: block;
			}
		}
	}
}
</style>
